Tell you what- tomorrow I'm planning on getting up at my normal time and put my light to the test on that MUP, just not on the section that has the steep drop offs. If I observe that what I have is sufficient, then I'll probably order a P7 and mount as an upgrade. Thus making what I already have an acceptable back-up.

FWIW, I'm only planning on using one flashlight on the bike itself. The other will basically live on my helmet. The skid lid goes into my backpack when it's not being worn.

And another thing, if my vision holds up, and my skills/confidence/financial situation improves- I'm shooting for a dynohub and light. And move the P7 to helmet duty.